Welcome to Horizon 5!

5Learn about the number 5, its properties, representations, and applications in mathematics and other fields. Find out how 5 is a prime, Fermat, Sophie Germain, safe, and Wilson prime, among other classifications.How long is 5.5 inches? How far is 5 and a 1 ⁄ 2 inches in centimeters? This simple calculator will allow you to easily convert 5.5 in to